JPS59156301A - Sole of ski boots - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ski sole. [More specifically, the present invention relates to a ski sole that can be combined with a ski binding, including a valve element that operates in the longitudinal direction of the shoe to releasably engage a groove in the rear of the heel of the shoe. and a front automatic release device having an engagement element releasably cooperating with a detent or nail located at the fore end of the sole. As described in Japanese Patent Application No. 17723 filed on February 15, 1980, ski bindings of the above type are pivotally connected to a rear release device and are designed to attach to the skier so as to transmit lateral thrust force from the skier's feet to the ski. - has a substantially rigid rond-like element that partially surrounds the foot of the foot. This type of ski binding shoe acts as a soft shoe because it does not act as a rigid body transferring force from the skier's foot to the ski. Therefore, these shoes can be used not only for skiing but also for walking. The sole of such a shoe must be sufficiently strong because the rear valve element presses the sole towards the front release element and the compressive force acts longitudinally on the main surface of the sole. No. If the strength is insufficient, the sole may flex under compressive forces and the shoe may become detached from the binding, or at least fail to maintain proper engagement between the binding and the sole under normal cedar conditions. On the other hand, shoes with very hard soles make it difficult to walk comfortably, so soft shoes that can be used with bindings have been desired. Attempts have been made to strengthen the hollow region of the foot of the shoe by placing a generally plate-shaped reinforcing element between the top of the sole and the upper part of the shoe. Although this counterfeit was successful in meeting the contradictory requirements mentioned above, it was expensive and required a lot of inspection to complete the shoes, which caused practical material problems. There were problems in firmly anchoring the sole to the pegs, which again created problems in having a sufficiently strong sole structure and in actual manufacture. It is an object of the invention to provide a ski boot that is strong enough for skiing, yet soft and supple enough for walking, while being relatively economical to manufacture. To provide a sole of a ski boot with which a peg can be easily and firmly attached to the sole and with different flexibility in the longitudinal direction. Yet another object of the present invention is to provide a sole having improved features over said Japanese patent application which is suitable and safe for releasing the shoe from a ski binding. These and other purposes, which will become apparent below, are such that the rear automatic release device 16 of the ski binding releasably engages the valve element 17 of the rear automatic release device 18 of the ski binding and the front automatic release device of the ski binding at the toe of the sole. The groove 16 and the engaging element 9.21 extend over the entire length inside the sole and have 1 embedded therein. This is achieved by means of a ski sole, which is characterized in that it is provided with reinforcing elements 8. In such soles, the reinforcing element occupies only the central longitudinal region of the sole, i.e. only in the area where binding compression forces and surface stresses act, thereby preventing undesired deflection of the sole during skiing. The VC is stiff to that extent, while the remaining portion of the sole unaffected by the reinforcing member is relatively soft so that the sole has the desired flexibility without compromising the required stiffness. The manufacture of this sole is particularly advantageous since its reinforcing elements are made of plastic material, around which the rubber sole can be injected and thermoformed. The shape of this reinforcing element can be varied in size as required so that the sole conveys different flexibility in its many parts, or the reinforcing element itself can be reinforced by inserting metal or the like. In particular, the front stop or nail can be fitted into the reinforcing element or embedded in a rigid metal plate embedded in the sole. Therefore, a strong bond between the sole and the stopper can be achieved. The features and advantages of the present invention can be explained with reference to the accompanying drawings below.
Detailed station of two examples, clearer than the light. One embodiment of the present invention will be explained in detail below with reference to the drawings. 1 of the ski shoes 2 according to the present invention has Lin J l on the bottom surface thereof.
It has ridges or ribs 3, 4 which are separated by ridges or depressions and which extend laterally of the sole in the form of chevrons. Extra ridges or ribs 5 are provided on the toe area of the sole 1 to allow the shoe 2 to better grip the ground when used for normal walking activities and to provide a better grip on the ground when the shoe 2 is used for skiing activities. To loosen and break snow or ice formed between the sole of a shoe and a ski. Between a pair of ribs 3 and 5 there is a transverse notch 6 in the sole 1 for providing the front release device of the ski binding described below, and between a pair of through ribs 3 and 4 there is a longitudinal notch 6. A bridge 7 is formed. This sole 1 is preferably made of rubber. A reinforcing element 8 made of a substantially rigid body such as a plastic material is embedded in the sole 1, and the reinforcing element 8 extends over the entire length of the sole 1 in the longitudinal direction, and its thickness increases toward the rear of the sole 1. do. As shown in plan view, said reinforcing element 8 is formed with an expanding flat toe section 8&; is reinforcing element 8
, but not narrower towards the rear part 8b of the reinforcing element 8. The thickness of this reinforcing element is considerably smaller at its tip 8a and at its rear 8b.
gradually increases towards . The reinforcing element 8 is solid (not hollow) and has a cellular recess formed at its center and rear portion, and the cellular recess is substantially rectangular and open upward. Is this reinforcement as shown in the plan view? The shape of element 8 is longitudinally similar to a normal shoe sole (F-curved, not rectangular like a ski boot). The tip part 8a is flexible, and the sole 1 has flexibility that is comfortable for forced deformation during walking. The flat front tip 8a of the reinforcing element 8 is compatible with the front release element 10 of a ski binding of the type described in the Japanese revised application cited above. Furthermore, the engaging element 9 is in the shape of a peg with a large head as shown in the first to fourth figures, and this engaging element 9 is parallel to the main surface of the sole 1. The small plate 11 is used to securely fit the plate 11 into the seat 12 of the reinforcing element 8. The connection between the plate 11 and the engaging element 9 is made in advance. The strong connection between the sole 1 and the engagement element 9 achieves a flexibility concentrated at the periphery of the plate. This is particularly advantageous when the shoe is used for walking activities, since the plate 11 is parallel to the main surface of the sole, making it easier to ski. The front release element 10 has a substantially flat V-shape and is fixed to the ski 13 by a screw passing through its hole 14.
As a result, the top of the ■ points toward the tip of the ski boot 2. This element 10 has a projection 1 projecting in its top region.
5 is provided, and during use, part 1, protrusion] 5 is a merging element 9
The front part of the shoe 2 is connected to the ski 13 by means of the hem. This V-shaped release element 10 can be released laterally as described in the above-cited patent. This release sleeve 10 has a cell structure as shown in the drawing. On the rear surface of the reinforcing element 8 there is a groove 1 which removably engages with the pusher element 17 of the rear automatic release device 18 of the ski binding.
6 is formed. These devices may also be in the form described in the cited patent applications. More specifically, the groove 16 is connected to the leg element 17.
The ball 19 is fitted so as to protrude from the tip of the ball 19. This wf16 is formed by a series of mutually converging surfaces as shown in Figures 8, 9 and 10. More precisely (d stiffness is defined by three surfaces a, which are adjacent to each other along a straight line throughout the year,
b and C, these straight lines concentrate toward the center point P perpendicular to the engagement position of the ball J9, and the surface a
Three surfaces d+e+f intervene between the peripheries of + b + e, and the lines between the kneading lines converge toward three points R, S, and T that are distant from the center point P but located around it. Therefore, two mutually independent side paths and different release methods in the vertical upward direction can be achieved. In fact, in a side release, the ball is first held along the sides of the PT and PS, and then along the same approximately horizontal direction on one or the other side of the release that has no effect on the upper release direction. I wake up. In other words, the concentration of many surfaces allows for release primarily in the lateral direction by exerting an extra force in the lateral direction. Conversely, in the vertical upward release method, the engagement of the ball 19 occurs mainly along the segment of the vertical component after reaching either of the previous points T and S, and does not affect the sideway release, but rather centers around the shoe. It has the effect of returning it to Due to the shape of the groove 16, it is possible to return to normal or sweeping conditions when the initial release force is temporary, that is, when the release is not completed before reaching point T or S. . Complete release is likely to occur only along a defined direction, either sideways or upwards or a combination of these directions. Inclined introduction surface IJj below the groove 16 in the strong element 8: the retaining element 9 as mentioned in the above-cited patent application
to facilitate engagement of the shoe 2 and the binding after engaging the front release element 10. The sole just described can be produced by injecting an elastic material into the sole 1 around the reinforcing element 8 thereof. Channels 20 for receiving soles 10 and elastics at the front and rear of reinforcing elements 8 to ensure their connection
It is a good idea to set up In the embodiment shown in FIG. 11, the reinforcing element 8 has an engagement element in the form of a projection 21 which projects towards the lip 5 at the toe end of the sole 1 and is firmly fixed to the ski 13 with a stop. Forms a conical head seat at the bottom of the nail η. In plan view, the shape of the protrusion 21 is flattened square-shaped and has the same function as the release element 10, but with an opposite angular configuration, ie its wings extend outwardly towards the front of the reinforcing element. This improves self-protection against accidental release. Instead of its head, the stop 22 may be a roller and a cylindrical element held on the ski 13 as a pivot. The reinforcing element 8 not only serves to secure the binding, but also to improve the flexibility of the sole due to its shape, arrangement, and the main elastic structure of the sole 1, such as the front part of the sole, the toe area, etc. Give where requested. This reinforcing element 8 may have a shape different from that shown and may also be provided with additional reinforcing elements, for example of metal. Of course, the reinforcing element may also be solid. This sole may for example have a solid base without bridges 7 and hollow areas. This reinforcing element 8 may be made of several pieces that are joined together depending on manufacturing convenience. It may also include reinforcing side wings of approximately omega-shaped cross-section. The plate 11 can also be longer and extend towards the central region of the reinforcing element 8. In addition to the channels or holes 20 shown, other channels 1 may be used to connect the reinforcing element to the sole. The grooves 16 may be formed by surfaces intersecting closer to each other, in particular the rear outer surface of the reinforcing element 8 and the surface e+e+
The bottom lines forming the corners between f may be more noticeably rounded. Many other modifications or variations of the invention are possible within its scope.

[Brief explanation of the drawing]

Fig. 1 is a bottom view of the shoe sole according to the present invention, Fig. 2 is a plan view of the opposite side thereof, Fig. 3 is a longitudinal cross-sectional view along the center line, and Fig. 4 is a sole according to the invention. A sectional view of the shoe sole installed in the ski binding, FIG. 5 shows the front IJ-sleeve element for attachment to the ski which cooperates with the lug-like engagement body attached to the sole. Fig. 6 is a cross-sectional view taken along the line M-M in Fig. 7, Fig. 7 is a plan view thereof, and Fig. 8 shows a groove of the reinforcing element into which the binding pusher element fits. Front view, Figure 9 is a sectional view taken along the line X-X in Figure 8, Figure 10 is a sectional view taken along the line X-X in Figure 8, and Figure 11 is a sectional view taken along the line X-X in Figure 8. FIG. 3 is a sectional view of another embodiment of a sole toe section with a retention element formed on the reinforcing element; 1...Sole, 8...Reinforcement element, 8.・
・・・・・・Tip part, 8b... Rear part, 9...
...Engagement element,]0...Front automatic release device, 11...Metal plate, J6...Groove, 1
7...Press element, 18...Rear automatic release device, 21...Protrusion part, 22...
Stop nail, a + b + e + d + e + f
...Surface, P ... Center point, R, S, T
······point.

Claims (10)

[Claims] (1) Ski binding rear automatic release device 18
a rear groove 16 which removably engages with the push element 17 of the shoe, and a peg 22 or a tab-like engagement element 9 of the front automatic release device 10 of the ski binding in the toe area of the sole;
21 and the groove 16] The engagement lines 9, 21
The ski sole is characterized in that it is provided in a sleeve stiffener 8 which extends the entire length inside the sole and is embedded therein. (2) The ski sole according to claim 1, wherein the reinforcing element (8) extends over substantially the entirety of the sole (1) and increases in thickness toward the rear of the sole. (3) The reinforcing element 8 is made of a plastic material, and the remaining part of the sole 1 is made of rubber. (4) The reinforcing element 8 has a flat and inflatable toe part 88, and this toe part 81L gradually becomes narrower toward the instep part of the reinforcing element 8, and from there to the rear part 8b of the reinforcing element 8. Ski sole according to claim 1.2.3, which does not become narrower in the opposite direction. (5) The reinforcing element 8 has a cell-shaped recess formed at least in its center and rear part, and the cell-shaped recess has a substantially rectangular shape and is open upward. The ski soles listed. (6) The aforementioned engagement element 9 is peg-shaped and has a large head;
The ski sole according to any one of the preceding claims, wherein the ski sole is firmly fitted to a metal plate 11 parallel to the main surface of the sole. (7) the groove 16 forms three linearly adjacent surfaces a+b+c converging toward the center APK;
Three additional surfaces d * e + f are the surfaces a. The ski sole according to claim 1, wherein the ski sole forms straight lines converging toward distant points R, S, and T. (8) The reinforcing element 8 is the rear automatic release device 18
A ski shoe sole according to claim 1 or claim 7, having an introduction surface inclined at a position below the groove 16. (9) The engagement element has an intersecting protrusion 21 that protrudes toward the toe end of the sole 1, and this protrusion 21 has a
The reinforcing element 8 has a central apex and a wing extending outwardly from the front of the reinforcing element 8, so that the downwardly expanding oblique head of the stop 22 of the front automatic release device is formed in the reinforcing element 8. A ski shoe sole according to claim 1, which comprises a seat that is removably fitted. (10) The engagement element has an intersecting protrusion 21 that protrudes toward the edge of the shoe sole 1, and this protrusion s21 is shaped like a square and has a center apex and the fi11. A downwardly inclined roller element rotatably supported by the front release device is removably fitted into the strong element 8, having wings extending outwardly from the front of the strong element 8. A ski shoe sole according to claim 1, which has a seat formed therein.